Navalyze · Chemical tanker · Ship

SEA NIMBUS

IMO: 9724544
Type: Chemical tanker
Average cargo carried: 16,847 t
Flag (estimated): Marshall Islands
Port of registry: Majuro
Technical efficiency: EEDI 5.27 g CO₂/t·nm
Ice class: IB
Former names: BRITISH NIMBUS, MAERSK NIMBUS

ISM company (DoC holder) in 2025: Pantheon Tankers Management Ltd

Report year

2018 at a glance

From the 2018 THETIS-MRV report. Carries about 19,976 t of cargo on average.

Fuel kg/nm

99.1

Chemical tanker median 90.2 kg/nm (+10%)

CO₂ per transport work (cargo)

15.6

g CO₂/t·nm · Chemical tanker median 17.1 (−9%)

Average speed

8.4 kn

Chemical tanker median 10.1 kn (−17%)

Fuel per day at sea

19.9 t/day

Fuel consumed

3,566 t

CO₂ emitted

11,182 t

Distance sailed

35,976 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,297 h

179 days, 49% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical tanker ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 121 kg/nm · median 79.7 (+52%)

52.8Ranks 1,393 of 1,460, lowest first111

Average speedThis ship 7.3 kn · median 11.1 (−34%)

8.8Faster than 4% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 22.7 g CO₂/t·nm · median 15.0 (+51%)

7.93Ranks 1,028 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2018

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports46%
From the EU21%
Into the EU21%
At berth in the EU12%

Fuel burned laden

–

Not reported

CO₂ at berth

1,371 t

12.3% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

SEA NIMBUS
Chemical tanker median

60.080.0100.0120.0140.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

SEA NIMBUS
Chemical tanker median

6.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

SEA NIMBUS
Chemical tanker median

10.015.020.025.030.0

’182018’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	−1.6 kn	+13%	−8%	−6%	+47%	1.6 kn slower, fuel per mile up 13%; worse than speed alone explains (fouling, weather, loading or trade).
2023→2024	−1.5 kn	+16%	−1%	+50%	−38%	1.5 kn slower, fuel per mile up 16%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−1.6 kn	+27%	+10%	−59%	+107%	1.6 kn slower, fuel per mile up 27%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.1 kn	−2%	−2%	+85%	−12%	Same speed, fuel per mile down 2%; in line with the speed change.
2020→2021	+0.7 kn	−30%	−26%	−34%	−17%	0.7 kn faster, fuel per mile down 30%; better than speed alone explains (hull, engine or trade).
2019→2020	+1.0 kn	−10%	−1%	−0%	−36%	1.0 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2018→2019	+1.8 kn	+20%	+47%	+19%	+64%	1.8 kn faster, fuel per mile up 20%; better than speed alone explains (hull, engine or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Pantheon Tankers Management Ltd	3,641	11,457	29,985	4,135	7.3	121	22.7	49%
2024	Pantheon Tankers Management Ltd	3,445	10,872	32,032	3,597	8.9	108	15.4	61%
2023	not published	1,985	6,289	21,331	2,048	10.4	93.0	24.9	34%
2022	not published	3,837	12,132	52,207	4,365	12.0	73.5	12.0	63%
2021	not published	2,122	6,805	28,170	2,359	11.9	75.3	13.7	–
2020	not published	4,588	14,364	42,657	3,797	11.2	108	16.4	–
2019	not published	5,097	15,920	42,783	4,183	10.2	119	25.5	–
2018	not published	3,566	11,182	35,976	4,297	8.4	99.1	15.6	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Pantheon Tankers Management Ltd	22.7	15.0	+51%	1,028 of 1,460	ABS	A
2024	Pantheon Tankers Management Ltd	15.4	16.7	−8%	577 of 1,274	ABS	A
2023	not published	24.9	16.2	+53%	932 of 1,314	ABS	–
2022	not published	12.0	16.1	−25%	403 of 1,409	ABS	A+B+C
2021	not published	13.7	16.7	−18%	462 of 1,343	ABS	A+B+C
2020	not published	16.4	16.2	+2%	670 of 1,312	ABS	A+B+C
2019	not published	25.5	17.3	+47%	966 of 1,321	ABS	–
2018	not published	15.6	17.1	−9%	536 of 1,294	ABS	A

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical tanker ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's chemical tanker ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.